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Growth and mortality of Brycon opalinus (Characiformes, Characidae) in Serra do Mar State Park, Atlantic Forest, São Paulo State
Leandro Muller Gomiero
Universidade Estadual Paulista
Departamento de Zoologia, Instituto de Biociências, C.P. 199, C.E.P. 13506-900, Av. 24-A, n. 1515, Rio Claro, São Paulo, Brasil
email: leanmg@rc.unesp.brAlberto Luciano Carmassi
Universidade Estadual Paulista
Departamento de Zoologia, Instituto de Biociências, C.P. 199, C.E.P. 13506-900, Av. 24-A, n. 1515, Rio Claro, São Paulo, Brasil
Francisco Manoel de Souza Braga
Universidade Estadual Paulista
Departamento de Zoologia, Instituto de Biociências, C.P. 199, C.E.P. 13506-900, Av. 24-A, n. 1515, Rio Claro, São Paulo, Brasil
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Pirapitinga do Sul, Santa Virgínia Unit, Brazil publication date: 01-01-2007
Abstract
Brycon opalinus were estimated from January through December 2004 in rivers of the Serra do Mar State Park - Santa Virgínia Unit, State of São Paulo. The distributions of the total-length frequency classes were different for males and females. The estimated parameters for males and females were: L∞ (asymptotic maximum length) = 29.8 and 37.7 cm; k (growth coefficient) = 0.54 and 0.56/year1; C (growth oscillation) = 0.3; Wp (winter point) = 0.7; M (natural mortality coefficient) = 0.97 and 0.93/year; four to five cohorts and longevity of 4.58 and 4.53 years, respectively. Growth and mortality of Brycon opalinus are intimately related to the intrinsic characteristics of the species, as well as to the environmental characteristics of seasonality and availability of food. how to quote this paper
Gomiero, L.M., Carmassi, A.L. and Braga, F.M.S. Growth and mortality of Brycon opalinus (Characiformes, Characidae) in Serra do Mar State Park, Atlantic Forest, São Paulo State. Biota Neotrop. Jan/Apr 2007 vol. 7, no. 1 http://www.biotaneotropica.org.br/v7n1/en/abstract?article+bn00207012007 ISSN 1676-0603 Cited species
Brycon opalinus 